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tino4ka555 [31]
2 years ago
12

Jada Peterson

Chemistry
1 answer:
barxatty [35]2 years ago
4 0

Answer: A

Explanation:

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PLEASE HELP ME ASAP Identify the arrows that show the correct direction of heat transfer.
adell [148]

Answer: Left Arrow Far right arrow and center left arrow

Explanation:

These three arrows are correct due to heat transfers to cooler temp environments which allows the expansion of speed for molecules in their environment.

6 0
3 years ago
Scientists estimate Earth's age to be 4.6 billion years. Samarium has a half-life of approximately 106 billion years. From the p
Wewaii [24]

1/4 Ao = Ao * ( 1/2)^(t/106)
t = 212
subtract 4.6 billion years
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8 0
3 years ago
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Complete the paragraph about the formation of sodium phosphide.
Nadya [2.5K]
<h2>Let us complete it :</h2>

Explanation:

let us study about formation of sodium phosphide

Electrons are transferred from atoms of  sodium to atoms of phosphorous

The sodium atom looses electrons and the phosphorus atoms  

gains electrons .

C. This transfer makes the sodium atoms  acquire positive charge and phosphorous acquire negative charge .

As a result, the sodium and phosphorus atoms strongly  bond with

each other.

8 0
3 years ago
Which is the best interpretation of the two flat portions of the graph
Fed [463]

Answer:

b

Explanation:

5 0
2 years ago
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calculate the number of moles of gas that occupy a 3.45L container at a pressure of 1.48 atm and a temperature of 45.6 Celsius ​
Otrada [13]

Answer:

There are 0,2 moles of gas that ocuppy the container.

Explanation:

We apply the formula of the ideal gases, we clear n (number of moles); we use the ideal gas constant R = 0.082 l atm / K mol. Firs we convert the unit of temperature in Celsius into Kelvin:

0°C= 273 K ------> 45,6 °C= 273 + 45, 6= 318, 6 K

PV= nRT ---> n= PV/RT

n= 1,48 atm x 3,45 L /0.082 l atm / K mol x 318,6 K

n= 0,195443479 mol

8 0
3 years ago
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